Measuring Roof Size

A 12 in 12 pitch is a steep 45 degree angle roof.

Measuring roof size.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

It will also give you the perimeter of the shape of the roof. Roof reports and wall reports made easy. See the image below for more explanation on rise run and pitch. After you ve done this you can click along the outer edge of the roof that you wish to calculate the area for.

The length l times the height h of a triangle is twice its area a2. L h 2 area calculating an area of a triangle when estimating a roof. If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2. How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.

So if you divide your answer of a product of length times height by two you will get the area of a triangle.